MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a84cf81fa2d7790ea8f5d59354fa47d2067a12c89c2d975ee2f3b9547765be1e. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


AgentTesla


Vendor detections: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a84cf81fa2d7790ea8f5d59354fa47d2067a12c89c2d975ee2f3b9547765be1e
SHA3-384 hash: 64294afc8e9304b16df2a26973bafd45503990e3da1243b66b3e98b4c5e7abadc14656198bc8e449371f7ce4d3109cd0
SHA1 hash: 913dfda85e33a933633b70c74f0c4bbaac7169a1
MD5 hash: 4aa0117a14667a987bb45444fbab6907
humanhash: alabama-cardinal-thirteen-foxtrot
File name:4aa0117a14667a987bb45444fbab6907.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:828'416 bytes
First seen:2020-09-02 12:26:07 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 7cd718d35c751294d875a87a767907f4 (2 x AgentTesla)
ssdeep 12288:dnBG8Ih+ZNInKg2MeG+6gYIW7U4SmMpE8aDXBrEKNY+KhT:pQ6jPMQ3w7U4/MiXDXB4SYbV
Threatray 9'891 similar samples on MalwareBazaar
TLSH 0605B032B2E04833D177E53D9C1B97749839BE112A25684E2FF8EC4C5F39681396A2D7
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
AgentTesla SMTP exfil server:
bh-58.webhostbox.net:587

AgentTesla SMTP exfil email address:
arinze@asustech.ml

Intelligence

File Origin
# of uploads :
1
# of downloads :
109
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/54322/
Detection(s):
PUA.Win.Adware.Slugin-6803969-0
Create hunting rule

PUA.Win.Adware.Slugin-6840354-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Sending a UDP request
Creating a window
Unauthorized injection to a recently created process
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Reading critical registry keys
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Result
Threat name:
AgentTesla
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/457439
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to detect sleep reduction / modifications
Detected unpacking (changes PE section rights)
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Machine Learning detection for dropped file
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 281106 Sample: qGDS46aanm.exe Startdate: 02/09/2020 Architecture: WINDOWS Score: 100 28 Found malware configuration 2->28 30 Antivirus / Scanner detection for submitted sample 2->30 32 Yara detected AgentTesla 2->32 34 Machine Learning detection for sample 2->34 6 arinze.exe 2->6         started        9 qGDS46aanm.exe 2->9         started        11 arinze.exe 2->11         started        process3 signatures4 36 Antivirus detection for dropped file 6->36 38 Multi AV Scanner detection for dropped file 6->38 40 Detected unpacking (changes PE section rights) 6->40 50 3 other signatures 6->50 13 arinze.exe 4 6->13         started        42 Detected unpacking (creates a PE file in dynamic memory) 9->42 44 Detected unpacking (overwrites its own PE header) 9->44 46 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 9->46 17 qGDS46aanm.exe 2 7 9->17         started        48 Maps a DLL or memory area into another process 11->48 20 arinze.exe 4 11->20         started        process5 dnsIp6 26 bh-58.webhostbox.net 199.79.63.24, 49711, 49715, 49717 PUBLIC-DOMAIN-REGISTRYUS United States 17->26 22 C:\Users\user\AppData\Local\...\arinze.exe, PE32 17->22 dropped 24 C:\Users\user\...\arinze.exe:Zone.Identifier, ASCII 17->24 dropped 52 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->52 54 Tries to steal Mail credentials (via file access) 17->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->56 58 Tries to harvest and steal ftp login credentials 20->58 60 Tries to harvest and steal browser information (history, passwords, etc) 20->60 file7 signatures8
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a84cf81fa2d7790ea8f5d59354fa47d2067a12c89c2d975ee2f3b9547765be1e/
Threat name:
Win32.Infostealer.Fareit
Create hunting rule
Status:
Malicious
First seen:
2020-09-02 12:27:13 UTC
AV detection:
33 of 48 (68.75%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vbgpqh5c254q5khv2wjvj6sh2idhuewitqwzoxxc6o4vi53fxypa._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
hawkeyekeylogger
Create hunting rule
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AgentTesla
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869e8a26e04953a411e7454c800e022bbbb3825320ab6e3935213357789f0844
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a5602ba2bfa6fcd7b914266f63da512b1c212c75406731aaefa9fcbcd785a57d
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a9103ccf2939a9a9b54d8c50aa993af6fcf3ddda4e0491f1987fe09a83f98ab3
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a93339bcc8ab06b5ef34abc63ba05c692b285ab47ff5d13b70959a52b3f53455
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d2bb06dc3882c72e26ed7598fee37d128955c229246225ed393d90bd2a4eb1dd
AgentTesla
+ 9'881 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
upx keylogger stealer persistence spyware trojan family:agenttesla
Link:
https://tria.ge/reports/200902-rgba2zjb92/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
UPX packed file
AgentTesla Payload
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a84cf81fa2d7790ea8f5d59354fa47d2067a12c89c2d975ee2f3b9547765be1e

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AgentTesla

Executable exe a84cf81fa2d7790ea8f5d59354fa47d2067a12c89c2d975ee2f3b9547765be1e

(this sample)

Cape
Cape
https://www.capesandbox.com/analysis/54322/
  
URLhaus
https://urlhaus.abuse.ch/url/413156/
  
Delivery method
Distributed via web download

Comments